Multiple attenuation using λ-f domain high-order and high-resolution Radon transform based on SL0 norm

作     者：Sun Wen-Zhi Li Zhen-Chun Qu Ying-Ming Li Zhi-Na 孙文之;李振春;曲英铭;李志娜

作者机构：School of GeosciencesChina University of PetroleumQingdao 266580China. 

出 版 物：《Applied Geophysics》 (应用地球物理（英文版）)

年 卷 期：2019年第16卷第4期

页      面：473-482,560,561页

核心收录：

学科分类：081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 0707[理学-海洋科学] 08[工学] 0708[理学-地球物理学] 0818[工学-地质资源与地质工程] 0825[工学-航空宇航科学与技术] 0704[理学-天文学] 

基　　金：funded by the National Natural Science Foundation of China(No.41774133) major national science and technology projects(No.2016ZX05024-003 and 2016ZX05026-002-002) the talent introduction project of China University of Petroleum(East China)(No.20180041) 

主　　题：SL0 norm orthogonal polynomial multiples AVO high-resolution 

摘      要：Radon transform is to use the speed difference between primary wave and multiple wave to focus the difference on differentpointsorlinesin Radon domain,so as to suppress multiple ***,the limited migration aperture,discrete sampling,and AVO characteristics of seismic data all will weaken the focusing characteristics of Radon *** addition,the traditional Radon transform does not take into account the AVO characteristics of seismic data,and uses L1 Norm,the approximate form of L0 Norm,to improve the focusing characteristics of Radon domain,which requires a lot of *** this paper,we combine orthogonal polynomials with the parabolic Radon transform(PRT)and find that the AVO characteristics of seismic data can be fitted with orthogonal polynomial *** allows the problem to be transformed into the frequency domain by Fourier transform and introduces a new variable,lambda,combining frequency and *** overall sampling of lambda,the PRT operator only needs to be calculated once for each frequency,yielding higher computational *** sparse solution of PRT under the constraints of the smoothed L0 Norm(SL0)obtained by the steepest descent method and the gradient projection *** and real examples are given to demonstrate that the proposed method has This method has advantages in improving the Radon focusing characteristics than does the PRT based on L1 norm.